CN101723107A

CN101723107A - Device for vacuum packaging, particularly of food products

Info

Publication number: CN101723107A
Application number: CN200910208038A
Authority: CN
Inventors: M·斯科拉罗
Original assignee: Extru SA
Current assignee: Extru SA
Priority date: 2008-10-17
Filing date: 2009-10-16
Publication date: 2010-06-09
Anticipated expiration: 2029-10-16
Also published as: EP2177438A1; RU2494943C2; BRPI0904199A2; ITTV20080131A1; CN101723107B; CO6270029A1; IT1391490B1; ES2382870T3; PL2177438T3; EP2177438B1; ATE551264T1; RU2009138358A

Abstract

A packaging device (1), particularly for food products or technical materials (2), which comprises a vacuum bell-shaped chamber (3) for packaging, particularly for packaging manually or automatically food products or technical materials (2), which can be inserted, by means of a loading surface that can move transversely, between longitudinally folded parts of a single-folded film (7) from an open side thereof and comprises thermal bonding or heat-sealing means for sealing, and at least one nozzle (18) for producing vacuum and/or for introducing the gas or mix. The nozzle (18) is of the type that can be extended/shortened as the width of the single-folded film (7) varies and is adapted to tighten and/or guide the single-folded film (7) upon a transverse movement thereof. The gas or mix is further injected proximate to the first folded longitudinal side (8) of the single-folded film.

Description

Vacuum packaging equipment especially for food

Technical field

The present invention relates to packing device, especially for the packing device of food or technologic material.

Background technology

Known vacuum facility have a belt-shaped chamber and comprise that one is connected to the vacuum pump of chamber at present, and this chamber is also referred to as vacuum chamber, and one the three unlimited preform sack of side is positioned in this vacuum chamber usually, and food then is placed in this sack.

In the machine of these known types, the preform sack that food has been placed on wherein so is inserted in the vacuum chamber, produces vacuum then in chamber; On the free edge of preform sack, implement heat seal afterwards.

This technique known need be used preformed sack, and therefore the preform sack has the sizable size with food; Also need appreciiable labour.

Therefore, exist a plurality of control steps, these steps have prolonged the realization food vacuum required time of packing; In addition, if packing occurs in the in check atmosphere, then can slattern quite most gas, because so gas not only is dispersed in the sack, but also major part is distributed in the vacuum chamber.

Also known EP603704 wherein, makes blister-pack food made of plastic, and film, carries out heat seal then and forms envelope to obtain bilayer by a folding station.

So the envelope that obtains had desirable size or capacity before can and sealing.

At heat seal and can afterwards, sealing and the cutting so envelope or the sack of acquisition of being shaped, yet the complexity of this kind scheme is that each operation that the film that it is made for the execution plastics must sequentially stand will provide several distinct stations.

The heat or the cold shaping of plastic sheeting also will be provided, and thereby to come filling liquid product, flour or fine grained article by means of jet pipe, therefore, can't consider such scheme is used to have the solid article of preset vol, such as sliced ham and salami, meat, cheese part, the pallet of food and non-food stuff is housed.

In addition, in above-mentioned known arrangement,, must make it, need in each station, make sack centering best thereupon, to allow best and desirable processed by various control steps in order to realize the sealing of envelope or sack.

Known have an EP0405718, it has disclosed a kind of scheme, a kind of packing device that is used in particular for packaged food or technologic material of this scheme explanation, above-mentioned food or technologic material can be inserted in a single folding between the longitudinal folding part of the film on one of its open side, this device comprises L-shaped basically hot adhesion or apparatus for heat sealing so that all seal this film on vertical side of opening wide and its cross side, and at least one nozzle that is used to form vacuum and/or introduces gas or compound.

Also known have an EP0832819, it has disclosed a kind of packing device, this device comprises a vacuum chamber, chamber can be opened and admit film of at least one the single folding that wherein inserts material to be packaged of certain-length, and can correspondingly be sealed shut, after this it can produce vacuum and/or introduce gas or compound, and such film portion or length present the structure of an envelope shape, also can provide apparatus for heat sealing, this device is arranged in the vacuum chamber for work, at least one jet pipe like this is arranged in the vacuum chamber place so that it after sealing towards the vertical and/or cross side that opens wide of the film of such length.

Even this scheme also keeps away unavoidable shortcoming, forms little fold because observed during the heat-seal film step, and this can bring the problem in the sealing, and makes the aesthetic appearance variation of packing.

In addition, gas mobile undesirable in film reduced the efficient of this device.

At last, when the operator pullled this thin slice, such thin slice can present an off-square structure.

Summary of the invention

Target of the present invention is by providing a kind of device to solve described technical matters, eliminate the many shortcomings that exemplified in the background technology, described device can be realized the vacuum packaging of the vacuum-packed or compensation of technical products or food, described product or food such as sliced ham and salami, meat, cheese part, the pallet of food and non-food stuff is housed, can guide film with optimum way, make gas flow reach higher efficient and avoid forming little fold.

In this target, an object of the present invention is to provide a kind of device, it can realize the simple and fast speed Manual Packaging of described product.

Another purpose provides a kind of device in conjunction with its above-mentioned feature, and is simple, reliable and safe in utilization on its structure.

According to claim 1, can realize described target, above-mentioned all purposes and other purpose by packing device according to the present invention from hereinafter becoming clear.

Description of drawings

Mode with non-limiting instance shows two certain embodiments in the accompanying drawings,, will understand more to other features and advantages of the present invention, in the accompanying drawing the detailed description of these two embodiment according to hereinafter:

Fig. 1 is the block diagram according to the parts of device of the present invention;

Fig. 2 is the part sectional view of this device;

Fig. 3 is the horizontal scheme drawing of jet pipe with respect to first kind of possibility structure of single folding film;

Fig. 4 is the schematic sectional view of jet pipe in the state shown in Figure 3;

Fig. 5 is the signal sectional plain-view drawing of jet pipe in the state shown in Figure 3;

Fig. 6 is the horizontal scheme drawing of jet pipe with respect to second kind of possibility structure of single folding film;

Fig. 7 is the schematic sectional view of jet pipe in the state shown in Figure 6;

Fig. 8 is the signal sectional plain-view drawing of jet pipe in the state shown in Figure 6;

Fig. 9 is the schematic plan view of this device;

Figure 10 is the schematic plan view of this device feature.

The specific embodiment

With reference to accompanying drawing, Reference numeral 1 expression is used for packing the device of technologic material especially or food, and technologic material or food are represented with Reference numeral 2.

Device 1 comprises the chamber of a shape such as vacuum clock, and it is indicated by Reference numeral 3, and is made up of a bottom container 4 and a closable upper cap 5 basically, with respect to container 4 and lid 5 suitable airtight first band or the pad 6 that be used for is set hermetically.

This device uses single folding film 7, and therefore this film has an osed top first a vertical side 8 and second a vertical side 9 of opening wide.

One first heat seal bar 11 laterally is arranged in inlet 10 places in the bell chamber 3 of vacuum; Laterally, a L-shaped basically cutting blade 12 is arranged, and first wing 13 of this blade is parallel to first heat seal bar, 11 layouts, and second wing 14 is arranged along single folding film 7 working direction and first wing with meeting at right angles adjacent to first heat seal bar 11.

One second heat seal bar 15 is adjacent to cutting blade 12, and it is also L-shaped and form one adjacent and to be parallel to the three wings 16 and of first wing 13 adjacent and be parallel to the 4th wing 17 of second wing 14.

First heat seal bar 11, second heat seal bar 15 and cutting blade 12 advantageously but not necessarily be associated with same supporting member 50, this supporting member can move in the bell chamber of vacuum, and abuts abutment 51 work of suitable setting, this abutment is associated in and covers in 5.

The bell chamber 3 of vacuum also comprises at least one jet pipe 18, and it is suitable for allowing at second vertical open side 9 places of single folding film or forms vacuum and/or introducing gas or compound at the 4th cross side 20 places adjacent to the side entrance 10 of the bell chamber 3 of vacuum.

In an illustrated embodiment, use jet pipe 18, its piston 31 by means of a suitable setting inserts hermetically from bell chamber substrate.

Jet pipe 18 is such types: it can roll over film 7 change width and extension/contraction along with single, and is suitable for tension and/or guiding list folding film 7 when single folding film 7 is made cross motion.

Therefore, jet pipe 18 is preferably concertina type, and therefore comprises a ducted body 60, is associated with ducted body 60 slidably by means of packing seal 61, one hollow stem 62 of suitable setting; Such bar has a preferably rounded end 63, and is suitable for sealing vertical side 8 interferences by adjacency with first of single folding film 7.

Packing seal available polyethylene or the material that is equal to are made.

Being close to end 63 has one or more holes 64, is used to penetrate gas or compound.

Therefore, at folding vertical side 8 jet gas or the compound that are close to single folding film 7.

Therefore, the use of this device is as follows.

Suppose to arrive lower state that the 3rd cross side 19 of rolling over film 7 adjacent to the list of the side exit 30 in the bell chamber of vacuum highly partly seals along it; The operator puts into single folding film inside by second vertical side 9 of opening wide with product to be packaged 2 thereafter.

According to obtainable container or pack 21 width, revise the extension degree of jet pipe 18 by elongating or shortening bar 62, its length can manually or by means of suitable mechanism automatically be changed by the operator.

By along the equidirectional of arrow as shown in Figure 6 loading surface together with single folding film 7 mobile products 2, such film can cooperate around jet pipe 18, almost up to its base portion 64: but operator so the little product 2 of the last product of packing ratio, and need not as in the background technology, to change single spool of rolling over film 7.

This can reduce tank farm stock and can be because of specifications vary lost hours.

Vice versa, in situation shown in Figure 3, and by move loading the bar 62 of surface and elongation jet pipe 18, jet pipe 18 single folding film that therefore can lead, thus can pack bigger product and do not change the spool of single folding film 7.

Thereafter, by the closable upper cap 5 that descends, then vacuum or gas vacuum cycle begin.

When vacuum or the end of gas vacuum cycle, if requirement, but jet pipe jet gas or compound; Then, start first heat seal bar 11 and form obtainable thereafter container or pack 21 the 3rd transverse seal side 19; Then, start second heat seal bar 15 and seal the 4th cross side 20 and second vertical side 9.

In described cyclic process, product does not move in bell chamber.

By starting cutting blade 12, obtain osed top packing 21 thus.Therefore can open bell chamber, take out the packing that so obtains, and begin new circulation.

Have found that thus, the present invention has reached its target and purpose, a device is provided, it can obtain the packing that atmosphere is revised in a vacuum packaging or by using a single folding film, film can arrange in the best way in case with the jet pipe mutual action, can also obtain not have the heat seal of minor fold, last, can make gas flow realize preferable efficient owing to the special setting in jet pipe hole.

Certainly, the present invention is easy to make many modifications and variations, and all such modifications and variation all fall within the scope of attached claims.

Certainly, constituting the material of each parts and size can be according to special maximally related material and the size of requiring.

Claims

1. one kind is used in particular for manually or the packing device (1) of packaged food or technologic material (2) automatically, described food or technologic material are inserted between the longitudinal folding part of described single folding film (7) by means of the open side of the loading surface that can laterally move from single folding film (7), described packing device (1) comprises and is used for leak free thermal or apparatus for heat sealing, and at least one jet pipe (18) that is used to produce vacuum and/or introduces gas or compound, and bell vacuum chamber (3), it is characterized in that, described jet pipe (18) is such type: its can be along with described single folding film (7) change width extension/contraction, and be suitable at described single folding film (7) described single film (7) of rolling over of strain when making cross motion and/or lead; Locate to spray described gas or compound in first folding vertical side (8) near described single folding film.

2. device as claimed in claim 1, it is characterized in that described jet pipe (18) is suitable for allowing locating or locating to form vacuum and/or introduce gas or compound at the 4th cross side (20) adjacent to the side entrance (10) of the bell chamber (3) of described vacuum in described vertical open side (9) of described single folding film (7).

3. device as claimed in claim 1 is characterized in that, described jet pipe (18) inserts and be connected to piston (31) hermetically from the substrate of the bell chamber (3) of described vacuum.

4. device as claimed in claim 1, it is characterized in that, described can be along with described single folding film (7) change width extension/contraction and be suitable for when described film is made cross motion tension and/or the described jet pipe (18) of the type of the described single folding film (7) that leads be concertina type and comprise ducted body (60), the hollow stem (62) that is provided with end (63) is associated with described ducted body (60) slidably by means of packing seal (61).

5. device as claimed in claim 4 is characterized in that, the described end (63) of described bar is rounded, and be suitable for by in abutting connection with and with the vertical side of described first osed top (8) interference of described single folding film (7).

6. device as claimed in claim 4 is characterized in that described packing seal is made by polyethylene or equivalent material.

7. device as claimed in claim 4 is characterized in that, near locating to be provided with the more than one hole (64) that is used to penetrate described gas or compound in described end (63).

8. device as claimed in claim 1 is characterized in that, is locating to spray described gas or compound near described folding vertical side (8) of described single folding film (7).

9. device as claimed in claim 4, it is characterized in that, according to the width of obtainable described container or packing (21), revise the extension degree of described jet pipe (18) by elongating or shortening described bar (62), its length is manually changed by the operator or automatically changes.

10. device as claimed in claim 1, it is characterized in that, surperficial together with described loadings that described single folding film (7) moves described product (2) by direction along same direction to described unlimited vertical side (9), described single folding film (7) is coupled on the described jet pipe (18), if necessary almost up to the base portion of described jet pipe, the product (2) that reduces with packing measurement.

11. device as claimed in claim 4, it is characterized in that, by move the described loading surface of described product (2) to described single direction of rolling over described folding vertical side (8) of film (7), the described bar (62) of described jet pipe (18) is elongated, the described single folding film (7) of guiding in its motion is so that the bigger product (2) of packing measurement.